Name: Mozilla Firefox (es-ES)
Author: Mozilla

Mozilla Firefox (es-ES)

Mozilla·Mozilla.Firefox.es-ES

Mozilla Firefox is free and open source software, built by a community of thousands from all over the world.

Firefox Browser, also known as Mozilla Firefox or simply Firefox, is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation. Firefox uses the Gecko layout engine to render web pages, which implements current and anticipated web standards. In 2017, Firefox began incorporating new technology under the code name Quantum to promote parallelism and a more intuitive user interface. Firefox is officially available for Windows 7 or newer, macOS, and Linux. Its unofficial ports are available for various Unix and Unix-like operating systems including FreeBSD, OpenBSD, NetBSD, illumos, and Solaris Unix.

winget install --id Mozilla.Firefox.es-ES --exact --source winget

Latest 156.0·September 15, 2026

Release Notes

Version 156.0, first offered to Release channel users on September 15, 2026

New

Firefox on macOS can now be set to open automatically when the computer starts up, from the Startup section of Settings.
Localized Wikipedia and occasional sponsored suggestions in the address bar are now available in France, Germany, and Italy. These suggestions can be turned off in Firefox Suggest settings.

Fixed

Fixed an issue where dragging an image to a new position in a rich-text editor could replace it with a long line of text instead of moving it.
Fixed high-sample-rate FLAC audio in MP4 failing to play on sites such as Bilibili.
Fixed subtitles not appearing in the Picture-in-Picture window when they are turned on in the video player after the window has already opened.
Fixed bookmarks moving out of their folder when the folder and the bookmarks inside it were selected and dragged together in the Bookmarks sidebar.
Fixed the find bar becoming permanently unavailable in a tab after reversing the panes in Split View.
Fixed some sites failing to load when DNS over HTTPS is enabled and the site does not support HTTPS.
Fixed Firefox losing all network connectivity for some users with the built-in VPN enabled.
Fixed an issue on Windows where Firefox could block an auto-hiding taskbar from showing.
Various security fixes.

Changed

Firefox's built-in PDF viewer now starts up to 45% faster.
Improved memory and CPU usage when Firefox displays large JPEG images scaled down to fit a page.
On Windows devices with ARM64 processors, WebRTC video calls may now use hardware H264 decoding instead of falling back to software.

Enterprise

You can find information about policy updates and enterprise-specific bug fixes in the Firefox for Enterprise 156 Release Notes.

Developer

Web Platform

text-box-trim now uses the font metrics of a ::first-line pseudo-element when one applies, matching other browsers and the specification.

Community Contributions

With the release of Firefox 156, we are pleased to welcome the developers who contributed their first code change to Firefox in this release, 10 of whom were brand new volunteers! Please join us in thanking each of these diligent and enthusiastic individuals, and take a look at their contributions:
- Aaron Ma: 2063818
- Dominik Bay [:eimann]: 2066736
- ExplodingJoysticks: 1728637, 1890400, 1910664, 1928343, 1944206, 2000658, 2003000, 2059911, 2061541
- Gopalarathnam Venkatesan: 2003172, 2042426, 2062096, 2062952, 2062989
- Hugo Osvaldo Barrera: 2063808
- Kana: 2062133
- Kerissa Grubb: 2042422
- Louis-Philippe Manette: 2062972, 2063867
- Seunghyun An: 2063033
- William McDonald: 1034964

Installer type: `nullsoft`

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Details

Homepage: https://www.mozilla.org/firefox/
License: MPL-2.0
Publisher: Mozilla
Support: https://support.mozilla.org/
Privacy Policy: https://www.mozilla.org/privacy/firefox/
Copyright: © Firefox and Mozilla Developers; available under the MPL 2 license.
Moniker: firefox

Older versions (61)

155.0.1

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155.0

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154.0.1

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154.0

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153.0.4

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153.0.3

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153.0.1

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153.0

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152.0.6

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152.0.5

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152.0.4

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152.0.3

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152.0.2

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152.0.1

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152.0

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151.0.4

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151.0.3

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151.0.2

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151.0.1

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151.0

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150.0.3

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150.0.2

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150.0.1

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150.0

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149.0.2

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149.0

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148.0.2

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148.0

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147.0.4

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147.0.3

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147.0.2

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147.0.1

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147.0

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146.0.1

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146.0

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145.0.2

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145.0.1

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145.0

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144.0.2

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144.0

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143.0.4

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143.0.3

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143.0.1

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143.0

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142.0.1

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142.0

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141.0.3

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141.0.2

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141.0

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140.0.4

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140.0.2

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140.0.1

x86—010561B9CD320578661187121344D199D776377C5FF8BE3979C687C7AD7B2E9D

x64—39DE760645C988380DB315E245327BC59993342D4B34F7F73DF0BBFE3F3B3710

arm64—CE09F1CB4475B78F9EDCF16C54FA5D0ECC9DE145482D8FF085D597CC70D5729C

140.0

x86—A6781451D297F0B476B6828CBD89D60598E61C94346A48CF578AA2459EDDEAAB

x64—A46195424B8733B1295A13950ED46D00D23C5C4ED84803835D7F2EB89EFC06BD

arm64—87D6D96852ABB04E6AFAF629A26C2BD2AF985C1649DB802F7B2E8499287FB946

139.0.4

x86—345DA1D003F6567C8820B471591432E7E40385265EB4BABE3AF2BA67ACB56526

x64—6AFEE13BAECB0F899FEC92E9B64A1834264B363FC10914236E2508CBDE4CA145

arm64—624498EBC05595C3A2E44B5E5D23E7FC6730F0CE8DE44903CD8288C57E26D4CC

139.0.1

x86—F8795DC39F8E7CEF3F09137DC293BD693EA51948CF16B9D20E03793D95C69FA2

x64—0BF761844ABBDD1A639A8DF2AF87FEB5E43D676FD9DD1B800A16524E3B225824

arm64—A54489A8C718AE45A673C9E53F362C1116629E85A89B228C7227F7625DE85742

139.0

x86—F0E59A1CCBEEDE2AE03A1ED64B4471671FD4AD082D2A8E37C15B934443788D13

x64—83A35059FEE8354D0402881F0BC313B90582428718343EFD15EB60D87E4E616C

arm64—DAE3EEF673231F6CC5166E19AB8F27FF1209949F1441E1792820837335F113C4

138.0.4

x86—A15078A7A45DAF7F4C6782365BDFA000CFBB3552B5244FB06D01586557702F93

x64—9B00CC12F6A4B379F9AF367481CD7373775855A9451539F56FB1354CCA899380

arm64—433FAE1972939CB8607D533958DE2E85005268A39D81029E52BAC56013C6278A

138.0.3

x86—21D17E2A85D71C7A515FD68EECA6620F45395780A14DC1EB94CBBC7360F2BFE7

x64—A7EBFA2DB95E1C5816AF1AAD93566451A85CAB74615ED42ED1AF1BCB3EB0962F

arm64—C14F9DB73CB6F3B8ACE0BA4D3CFE7F852D1882E3AF0A96FD20E064514BC836CF

138.0.1

x86—C354BDCA8E69F86707667387F457243314864008E45C8741D2D835AB69936803

x64—AEF7AFE9EBDC52A77D7131A00407A6EAE582CC93F98C83DE0B27E4E765933FB3

arm64—3B248C69CF8339F64F6B3117050B3BE45E93517FFAB641C9A26F9272CFC489E9

138.0

x86—F01FF47F9A5A0810C6C49083F5D112C3DB70E0B2F06AA0838C7FDFF5BA352ACC

x64—15C10789BB14D62CF9BFD7E0A19CDF720945ABD1EFAE3AB6B8F784F09F99E1B0

arm64—8CBD0705A6798615E75E372871DB391EDEE8B8E88D047089CF2DB2020E1AF16C

137.0.2

x86—4CB4CFC630F4D18EBBCE6F5E0EB31FFBBAC3BE9DFC1EBB9FE29C6679FCD059D7

x64—718B894EE0D35BF6E013F5B7CD30E48B2790F287A57E48B094E43352F6B5752B

arm64—F4703E8FFAC2E077965F43E006CBC8A9CA6922949EB66F3699C2F584DC413AA9

Mozilla Firefox (es-ES)

Latest 156.0·September 15, 2026

Installer type: nullsoft

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Installer type: `nullsoft`